William j



w. J. DROPPLEMAN.

GAS cAsms HEAD.

APPLICATION. FILED MAR. I1, I92].

Patented Nov, 22, 1921.

UNITED STATES PATENT QFFlCE.

GAS CASING- HEAD.

Specification of Letters Patent.

Patented Nov. 22, 1921.

Application filed March 11, 1921. Serial No. 451,457.

To all whom it may concern Be it known that I, WILLIAM J. DROPPLE- MAN,a citizen of the United States, and resident of McWhorter, in the countyof Lewis, State of West Virginia, have invented certain new and usefulImprovements in Gas Casing Heads, of which the following is adescription, reference being had to the accompanying drawings, forming apart hereof.

My invention relates to casing heads for gas and oil wells and has forits object to provide a casing head for such wells which will be simpleand inexpensive in construction, comparatively light in weight, readilyapplied to and removed and which will be adapted to fit the collar orcoupling on the upper end of the top section of the well casin so as tomake a tight joint with it.

Vith these and other objects hereinafter explained in view, my inventionconsists in the construction and combination of elements hereinafterdescribed and claimed.

Referring to the drawings;

.Figure 1 is a perspective view of a casing head embodying my inventioncomplete and ready for use.

Fig. 2 is a vertical central sectional view of the casing head shown inFig. 1, with a portion of the well casing and the coupling carried byit.

Fig. 3 is a side elevation of the section of tubing from which the bodyof the casing head is formed.

Fig. 4 is a perspective view of the top clamp, and

Fig. 5 is a perspective view of the packing ring.

In the drawings 1 indicates a section of well casing, or other tubing,exteriorly screwthreaded at its lower end at 2, to fit the coupling 8 onthe upper end of the top section at of a well casing. In forming thecasing head this section of tubing is provided at its upper end withlongitudinal V shaped incisions to leave between them tongues 5. Thesetongues are bent inward from their bases and then bent upward to inclosebetween them a section of smaller tubing 7 the upper ends of the tonguesbeing bent outward to form ears 8. The tongues 5 are welded together attheir edges and are welded to the section of smaller tubing 7.

The base portions of the tongues when thus welded together form asomewhat dome shaped top 6. The section of smaller tubing 7 is outwardlyflared at its upper end as shown at 9, to receive a packing ring 10which is exteriorly tapered as shown. A top clamp 11 having an opening12 through it and 2. depending flange 13 surrounding the opening andadapted to enter the flared upper end 9 of the smaller tubing 7 serves,when forced downward, to compress the packing ring 10 against theleading off pipe 14: thus insuring a tight joint. In order to force thistop clamp downward it is provided with openings in line with similaropenings in the ears 8 to receive bolts 15.

The body of the casing head is preferably provided with laterallyextending tubes 16 and 17 preferably interiorly screwthreaded, toreceive lateral leading off pipes if desired. These laterally extendingtubes also serve as convenient handles for carrying the casing head andfor rotating it to screw it into place in the coupling 3. The casingbeing exteriorly screwthreaded to fit within the coupling 3, if thereshould be any leakage, a packing ring may readily be inserted within thecoupling to rest on the upper end of the top section of pipe 4 and becompressed by screwing the casing head down onto it.

While I prefer to make the body of the casing head of a section ofordinary well casing having the usual screwthread cut on it. It may, ofcourse be made of special tubing. The section of tubing, whether cutfrom a length of easing or special tubing, from which the body of thecasing head is made may be of any diameter desired. Being relativelythin material, particularly if ordinary well casing is used, the casinghead will be of comparatively light weight making it convenient fortransportation and easily handled in placing it in position.

Having thus described my invention what I claim is;

1. A casing head comprising a body formed of tubing exteriorly threadedat its lower end and having its upper portion cut to form longitudinaltongues, the base portions of said tongues being bent inward and unitedto form a top and the outer portions bent upward and united to form arestricted passa e adapted to receive a leading off pipe.

2. casing head comprising a body formed of tubing eXteriorly threaded atits lower end and having its upper portion cut to form longitudinaltongues, the base portions of said tongues beingbent inward and unitedto form a top and the outer portions bent upward about a section oftubing of relatively small diameter and united to each other and to saidsection of smaller tubing.

3. A casing head comprising a body formed of tubing exteriorly threadedat its lower end and having its upper portion out to form longitudinaltongues, the base por- 10 tions of said tongues being bent inward and

